Home / 631,151,996.80-946,727,995.20-478,096,988.80

Finding the Fourth Proportional to 631,151,996.80, 946,727,995.20 and 478,096,988.80

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Solution

The fourth proportional to 631,151,996.80, 946,727,995.20 and 478,096,988.80 is: 717,145,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,151,996.80 : 946,727,995.20 = 478,096,988.80 : x
  2. Step 2: Convert to fraction form
    631,151,996.80/946,727,995.20 = 478,096,988.80/x
  3. Step 3: Cross multiply
    631,151,996.80x = 946,727,995.20 × 478,096,988.80
  4. Step 4: Simplify right side
    631,151,996.80x = 452,627,803,717,780,864
  5. Step 5: Solve for x
    x = 452,627,803,717,780,864/631,151,996.80
  6. Step 6: Final answer
    x = 717,145,483.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.